CN103658647A - SLM device based on four lasers and two stations and machining method - Google Patents
SLM device based on four lasers and two stations and machining method Download PDFInfo
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- CN103658647A CN103658647A CN201310670777.4A CN201310670777A CN103658647A CN 103658647 A CN103658647 A CN 103658647A CN 201310670777 A CN201310670777 A CN 201310670777A CN 103658647 A CN103658647 A CN 103658647A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The invention discloses an SLM device based on four lasers and two stations and a machining method. The device comprises an optical system, a central industrial personal computer, a seal molding chamber and a moving panel. The optical system is connected with the central industrial personal computer, and the seal molding chamber is isolated from the optical system and located below the moving panel. The optical system comprises two sets of optical fiber lasers, two light valve steering units, two variable beam-expanding collimating mirror units and two scanning galvanometer units, wherein the light valve steering units, the variable beam-expanding collimating mirror units and the scanning galvanometer units correspond to the optical fiber lasers respectively and are arranged on the moving panel. The seal molding chamber is provided with an optical lens below each of the two-station positioning positions of one scanning galvanometer unit, and is also provided with an optical lens below each of the two-station positioning positions of the other scanning galvanometer unit. The SLM device based on the four lasers and the two stations can achieve two-station scanning, and ensure high-efficiency and high-precision machining of large-size molding parts.
Description
Technical field
The present invention relates to a kind of laser selective melting SLM equipment, especially a kind of laser selective melting SLM equipment and processing method based on four laser doubles, belongs to technical field.
Background technology
Laser selective melting SLM (Selective Laser Melting) integration of equipments the technology such as laser, precision drive, new material, CAD/CAM, by the meticulous Laser Focusing hot spot of 30～80 microns, by selection area on the new paving of line overlap joint scanning bisque, form after facial contour, layer is piled up moulding manufacture with layer, thereby directly obtain arbitrary shape almost, have the metal function part of complete metallurgical binding, density can reach and be close to 100%; SLM equipment is reduced to two dimensional surface manufacture by complex three-dimensional solid, and manufacturing cost does not depend on the complexity of part, but depends on volume and the forming direction of part.
SLM equipment is as the important way of direct manufacture metal function part, and its advantage is mainly manifested in:
1) adopt layering manufacturing technology, profiled member is not subject to the impact of geometry complexity, to any complicated forming metal parts, can directly manufacture, easily manufactured for personalized small lot complex product;
2) use the optical fiber laser of high power density, beam mode is good, and laser facula is little, and formed precision is higher;
3) directly make terminal metal product, because laser energy density is higher, to the high difficult processing metal of fusing point, can directly be processed into terminal metal product;
4) forming metal parts is the entity with metallurgical binding, and its relative density almost reaches 100%, and performance surpasses conventional cast part.
But current laser selective melting SLM equipment shaping area is on the market limited to optical system, maximum forming area 280 * 280 * 350mm of single galvanometer, is not suitable for large scale profiled member.High power large spot scanning simultaneously can be raised the efficiency, small light spot can guarantee formed precision, existing SLM equipment be difficult to guarantee that high-efficiency high-precision synchronously carries out, so precision, efficiency, compact dimensions have retrained application and the development (especially when large-scale part moulding) of SLM equipment always.
Summary of the invention
The object of the invention is in order to solve the defect of above-mentioned prior art, provide a kind of and can realize double scanning, guaranteed the high efficiency of large scale forming part, the laser selective melting SLM equipment based on four laser doubles of high accuracy processing.
Another object of the present invention is to provide a kind of processing method of the laser selective melting SLM equipment based on four laser doubles.
Object of the present invention can be by taking following technical scheme to reach:
Laser selective melting SLM equipment based on four laser doubles, comprise optical system, central industrial computer and sealing moulding chamber, described optical system is connected with central industrial computer, it is characterized in that: also comprise the movable panel that can realize double location, described sealing moulding chamber and optical system are isolated and be positioned at below movable panel, described optical system comprise two groups of optical fiber lasers and with every group of light valve steering unit that optical fiber laser is corresponding, type variable beam-expanding collimation mirror unit and scanning galvanometer unit, described every group of optical fiber laser comprises two optical fiber lasers, the input of described each light valve steering unit for switching two optical fiber lasers, described two light valve steering units, two type variable beam-expanding collimation mirror units and two scanning galvanometer unit are all arranged on movable panel, the described sealing moulding chamber therein below, double position location of a scanning galvanometer unit is respectively equipped with an optical lens, below the double position location of another scanning galvanometer unit, be also respectively equipped with an optical lens.
As a kind of preferred version, described two groups of optical fiber lasers are respectively first group of optical fiber laser and second group of optical fiber laser, described first group of optical fiber laser comprises the first low-power optical fiber laser and the first high-capacity optical fiber laser, described second group of optical fiber laser comprises the second low-power optical fiber laser and the second high-capacity optical fiber laser, described the first low-power optical fiber laser and the second low-power optical fiber laser are for forming metal parts boundary scan, described the first high-capacity optical fiber laser and the second high-capacity optical fiber laser scan for inner filling of forming metal parts, described two light valve steering units are respectively the first light valve steering unit and the second light valve steering unit, the input of described the first light valve steering unit for switching the first low-power optical fiber laser and the first high-capacity optical fiber laser, the input of described the second light valve steering unit for switching the second low-power optical fiber laser and the second high-capacity optical fiber laser.
As a kind of preferred version, described SLM equipment also comprises the first rail plate and the second rail plate being parallel to each other, described movable panel is connected with the second rail plate with the first rail plate respectively, described movable panel extends to the right with the part that the first rail plate is connected, and extends left with the part that the second rail plate is connected, described two type variable beam-expanding collimation mirror units are respectively the first type variable beam-expanding collimation mirror unit and the second type variable beam-expanding collimation mirror unit, described two scanning galvanometer unit are respectively the first scanning galvanometer unit and the second scanning galvanometer unit, described the first light valve steering unit, the first type variable beam-expanding collimation mirror unit are connected successively with the first scanning galvanometer unit, and described the second light valve steering unit, the second type variable beam-expanding collimation mirror unit are connected successively with the second scanning galvanometer unit, described the first type variable beam-expanding collimation mirror unit and the first light valve steering unit are successively set on the part that movable panel extends from left to right to the right, described the second type variable beam-expanding collimation mirror unit and the second light valve steering unit are successively set on the part that movable panel extends from right to left left, described the first scanning galvanometer unit and the second scanning galvanometer unit are symmetricly set on the center of movable panel, described sealing moulding chamber is respectively equipped with the first optical lens and the second optical lens below the double position location of the first scanning galvanometer unit, below the double position location of the second scanning galvanometer unit, be respectively equipped with the 3rd optical lens and the 4th optical lens.
As a kind of preferred version, described SLM equipment also comprises screw, described screw is connected with central industrial computer by screw gear unit, described screw, under the effect of screw gear unit, drives movable panel to move between double along the first rail plate and the second rail plate by fixed connecting piece.
As a kind of preferred version, the input that described the first light valve steering unit adopts 45 degree total reflection eyeglasses to switch the first low-power optical fiber laser and the first high-capacity optical fiber laser, the input that described the second light valve steering unit adopts 45 degree total reflection eyeglasses to switch the second low-power optical fiber laser and the second high-capacity optical fiber laser.
As a kind of preferred version, described the first scanning galvanometer unit is provided with first group of scanning galvanometer sheet for the laser beam of the first type variable beam-expanding collimation mirror unit transmission is carried out to deflection, described the second scanning galvanometer unit is provided with second group of scanning galvanometer sheet for the laser beam of the second type variable beam-expanding collimation mirror unit transmission is carried out to deflection, and described first group of scanning galvanometer sheet and second group of scanning galvanometer sheet are comprised of two mutually orthogonal galvanometer sheets respectively; The bottom of described the first scanning galvanometer unit and the second scanning galvanometer unit is respectively equipped with for laser beam being carried out to the field lens of deflection rectification.
As a kind of preferred version, described screw gear unit adopts servomotor.
As a kind of preferred version, described sealing moulding chamber interior is provided with paving powder unit, two bottom sides is respectively equipped with unnecessary Powder Recovery unit, bottom centre place is provided with for placing the shaped platform of forming metal parts, and described shaped platform is by being connected to form the structure that can move down with central industrial computer.
Another object of the present invention can be by taking following technical scheme to reach:
The processing method of the laser selective melting SLM equipment based on four laser doubles, is characterized in that comprising the following steps:
1) sealing moulding chamber is divided into Liang Ge region, HeII district, I district along center line, HeII district, I district is two stations of corresponding movable panel respectively;
2) optical system on movable panel is in I district, and now the first scanning galvanometer unit is over against the first optical lens, and described the second scanning galvanometer unit is over against the 3rd optical lens;
3) central industrial computer sends a signal to the first low-power optical fiber laser, the second low-power optical fiber laser, the first light valve steering unit, the second light valve steering unit, the first type variable beam-expanding collimation mirror unit and the second type variable beam-expanding collimation mirror unit;
Open the first low-power optical fiber laser, the low power laser bundle of its transmitting enters the first light valve steering unit by optical fiber, the first light valve steering unit adopts 45 degree total reflection eyeglasses that the reflection of low power laser bundle is entered to the first type variable beam-expanding collimation mirror unit, the first type variable beam-expanding collimation mirror unit expands multiple according to low power laser Shu Genggai, low power laser bundle after expanding is transferred to the first scanning galvanometer unit, after correcting by the deflection of first group of scanning galvanometer sheet and field lens deflection, by the first optical lens, the scanning of profile limes marginis is carried out in the forming metal parts border in I district,
Open the second low-power optical fiber laser, the low power laser bundle of its transmitting enters the second light valve steering unit by optical fiber, and the second light valve steering unit adopts 45 degree total reflection eyeglasses that the reflection of low power laser bundle is entered to the second type variable beam-expanding collimation mirror unit; The second type variable beam-expanding collimation mirror unit expands multiple according to low power laser Shu Genggai, low power laser bundle after expanding is transferred to the second scanning galvanometer unit, after correcting by the deflection of second group of scanning galvanometer sheet and field lens deflection, by the 3rd optical lens, the scanning of profile limes marginis is carried out in the forming metal parts border in I district;
4) after the limes marginis in I district has scanned, by central industrial computer, close the first low-power optical fiber laser and the second low-power optical fiber laser, movable panel moves under the drive of screw, make the optical system on movable panel enter II district, now the first scanning galvanometer unit is over against the second optical lens, described the second scanning galvanometer unit is over against the 4th optical lens, continue to open the first low-power optical fiber laser and the second low-power optical fiber laser, the scanning of profile limes marginis is carried out on the forming metal parts border in DuiII district;
5) after the limes marginis in II district has scanned, shaped platform is automatic decline one deck under the effect of central industrial computer, now spread powder unit paving layer of metal powder, continue to adopt the first low-power optical fiber laser and the second low-power optical fiber laser, the scanning of profile limes marginis is carried out on forming metal parts border in DuiII district, after having scanned, by central industrial computer, close the first low-power optical fiber laser and the second low-power optical fiber laser, movable panel moves under the drive of screw, make the optical system on movable panel enter I district, return to step 3), until complete 4～10 layers of paving powder limes marginis scanning work, now the first scanning galvanometer unit on movable panel and the second scanning galvanometer unit are in II district, the first scanning galvanometer unit is over against the second optical lens, described the second scanning galvanometer unit is over against the 4th optical lens,
6) central industrial computer sends a signal to first group of optical fiber laser, second group of optical fiber laser, the first light valve steering unit, the second light valve steering unit, the first type variable beam-expanding collimation mirror and second type variable beam-expanding collimation mirror;
The first low-power optical fiber laser is closed, the first high-capacity optical fiber laser is opened, now 45 of the first light valve steering unit degree completely reflecting mirrors shift out, the high-power laser beam of the first high-capacity optical fiber laser transmitting directly enters the first type variable beam-expanding collimation mirror unit by the first light valve steering unit, the first type variable beam-expanding collimation mirror unit expands multiple according to the output facula adjustment of high-power laser beam, high-power laser beam after expanding is transferred to the first scanning galvanometer unit, after correcting by the deflection of first group of scanning galvanometer sheet and field lens deflection, by the forming metal parts in the second optical lens DuiII district, carrying out inner filling of profile scans,
The second low-power optical fiber laser is closed, the second high-capacity optical fiber laser is opened, now 45 of the second light valve steering unit degree completely reflecting mirrors shift out, the high-power laser beam of the second high-capacity optical fiber laser transmitting directly enters the second type variable beam-expanding collimation mirror unit by the second light valve steering unit, the second type variable beam-expanding collimation mirror unit expands multiple according to the output facula adjustment of high-power laser beam, high-power laser beam after expanding is transferred to the second scanning galvanometer unit, after correcting by the deflection of second group of scanning galvanometer sheet and field lens deflection, by the forming metal parts in the 4th optical lens DuiII district, carrying out inner filling of profile scans,
7) after has filled the inside in II district, by central industrial computer, close the first high-capacity optical fiber laser and the second high-capacity optical fiber laser, movable panel moves under the drive of screw, make the optical system on movable panel enter I district, now the first scanning galvanometer unit is over against the first optical lens, described the second scanning galvanometer unit is over against the 3rd optical lens, continue to open the first high-capacity optical fiber laser and the second high-capacity optical fiber laser, the forming metal parts in I district is carried out to inner filling of profile and scan;
8) adopt the first low-power optical fiber laser and the second low-power optical fiber laser to complete paving powder limes marginis scanning work to next 4～10 layers, after completing, adopt again the first high-capacity optical fiber laser and the second high-capacity optical fiber laser to carry out inside and fill scanning, the processing of having piled up large scale forming metal parts by layer and layer.
The present invention has following beneficial effect with respect to prior art:
1, laser selective melting SLM equipment of the present invention is when moulding, adopt low-power optical fiber laser first to after 4～10 bed thickness of forming metal parts silhouette edge sulcus terminalis limit, adopt again high-capacity optical fiber laser to fill forming metal parts profile inside, thereby greatly degree reduces the laser scanning time, improves 4～5 times of shaping efficiencies.
2, laser selective melting SLM device structure of the present invention is simple, easy to use, screw drives movable panel can realize movement and the location between double under the effect of helical screw gear unit, thereby realize the scanning of double, guaranteed high efficiency, the high accuracy processing of large scale forming part.
3, laser selective melting SLM equipment of the present invention can be directly and central industrial computer exchange message by type variable beam-expanding collimation mirror, according to input laser beam, to expanding multiple, automatically adjust, sealing moulding chamber is provided with four optical lenses below scanning galvanometer double, is convenient to the harmless forming room that enters of laser beam energy.
Accompanying drawing explanation
Fig. 1 is laser selective melting SLM equipment Facad structure schematic diagram of the present invention.
Fig. 2 is laser selective melting SLM equipment plan structure schematic diagram of the present invention.
Fig. 3 is the switching principle schematic diagram of the first light valve steering unit in laser selective melting SLM equipment of the present invention.
Fig. 4 is the switching principle schematic diagram of the second light valve steering unit in laser selective melting SLM equipment of the present invention.
Wherein, 1-sealing moulding chamber, 2-movable panel, 3-screw, 4-the first rail plate, 5-the second rail plate, 6-screw gear unit, 7-fixed connecting piece, 8-spreads powder unit, the unnecessary Powder Recovery of 9-unit, 10-forming metal parts, 11-shaped platform, 12-the first light valve steering unit, 13-the second light valve steering unit, 14-the first type variable beam-expanding collimation mirror unit, 15-the second type variable beam-expanding collimation mirror unit, 16-the first scanning galvanometer unit, 17-the second scanning galvanometer unit, 18-the first low-power optical fiber laser, 19-the first high-capacity optical fiber laser, 20-the second low-power optical fiber laser, 21-the second high-capacity optical fiber laser, first group of scanning galvanometer sheet of 22-, second group of scanning galvanometer sheet of 23-, 24-field lens, 25-the first optical lens, 26-the second optical lens, 27-the 3rd optical lens, 28-the 4th optical lens, 29-metal dust.
The specific embodiment
Embodiment 1:
As depicted in figs. 1 and 2, the laser selective melting SLM equipment of the present embodiment, comprise optical system, central industrial computer, sealing moulding chamber 1, movable panel 2, screw 3, the first rail plate 4 and the second rail plate 5, described optical system is connected with central industrial computer, and described sealing moulding chamber 1 is isolated and be positioned at movable panel 2 belows with optical system, described the first rail plate 4 and the second rail plate 5 are parallel to each other, described movable panel 2 is connected with the second rail plate 5 with the first rail plate 4 respectively, described movable panel 2 extends to the right with the part that the first rail plate 4 is connected, extend left with the part that the second rail plate 5 is connected, described screw 3 is connected with central industrial computer by screw gear unit 6, described screw 3 is under the effect of screw gear unit 6, by fixed connecting piece 7, drive movable panel 2 to move between double along the first rail plate 4 and the second rail plate 5, described screw gear unit 6 adopts servomotor, 1 inside, described sealing moulding chamber is provided with paving powder unit 8, sealing moulding chamber 1 two bottom sides is respectively equipped with unnecessary Powder Recovery unit 9, when paving powder, there is unnecessary powder to enter this unnecessary Powder Recovery unit 9,1 bottom centre place, sealing moulding chamber is provided with for placing the shaped platform 11 of forming metal parts 10, described shaped platform 11 is connected with central industrial computer, at the effect compacted under platform 11 of central industrial computer, can move down.
Described optical system comprises first group of optical fiber laser, second group of optical fiber laser and be arranged on the first light valve steering unit 12 on movable panel 2, the second light valve steering unit 13, the first type variable beam-expanding collimation mirror unit 14, the second type variable beam-expanding collimation mirror unit 15, the first scanning galvanometer unit 16 and the second scanning galvanometer unit 17, described the first light valve steering unit 12, the first type variable beam-expanding collimation mirror unit 14 is connected successively with the first scanning galvanometer unit 16, described the second light valve steering unit 13, the second type variable beam-expanding collimation mirror unit 15 is connected successively with the second scanning galvanometer unit 17, described first group of optical fiber laser comprises the first low-power optical fiber laser 18 and the first high-capacity optical fiber laser 19, described second group of optical fiber laser comprises the second low-power optical fiber laser 20 and the second high-capacity optical fiber laser 21, described the first low-power optical fiber laser 18 and the second low-power optical fiber laser 20 are for forming metal parts 10 boundary scans, described the first high-capacity optical fiber laser 19 and the second high-capacity optical fiber laser 21 scan for inner filling of forming metal parts 10, described the first light valve steering unit 12 is for switching the input of the first low-power optical fiber laser 18 and the first high-capacity optical fiber laser 19, described the second light valve steering unit 13 is for switching the input of the second low-power optical fiber laser 20 and the second high-capacity optical fiber laser 21, described the first scanning galvanometer unit 16 is provided with first group of scanning galvanometer sheet 22, described the second scanning galvanometer unit 17 is provided with second group of scanning galvanometer sheet 23, and described first group of scanning galvanometer sheet 22 and second group of scanning galvanometer sheet 23 are comprised of two mutually orthogonal galvanometer sheets respectively, the bottom of described the first scanning galvanometer unit 16 and the second scanning galvanometer unit 17 is respectively equipped with field lens 24, described the first type variable beam-expanding collimation mirror unit 14 and the first light valve steering unit 12 are successively set on the part that movable panel 2 extends from left to right to the right, described the second type variable beam-expanding collimation mirror unit 15 and the second light valve steering unit 13 are successively set on the part that movable panel 2 extends from right to left left, and described the first scanning galvanometer unit 16 and the second scanning galvanometer unit 17 are symmetricly set on the center of movable panel 2, described sealing moulding chamber 1 is respectively equipped with the first optical lens 25 and the second optical lens 26 below the double position location of the first scanning galvanometer unit 16, is respectively equipped with the 3rd optical lens 27 and the 4th optical lens 28 below the double position location of the second scanning galvanometer unit 17.
As shown in figures 1 and 3, the input that described the first light valve steering unit 12 adopts 45 degree total reflection eyeglasses to switch the first low-power optical fiber laser 18 and the first high-capacity optical fiber laser 19, when adopting 18 pairs of forming metal parts of the first low-power optical fiber laser, 10 silhouette edge sulcus terminalis limit, now 45 degree total reflection eyeglasses are opened, and the first low-power optical fiber laser 18 enters the first type variable beam-expanding collimation mirror unit 14 by the reflection of 45 degree total reflection eyeglasses; When adopting the inner filling of 19 pairs of forming metal parts of the first high-capacity optical fiber laser, 10 profiles, now 45 degree total reflection eyeglasses are removed (as shown in dotted portion), and the first high-capacity optical fiber laser 19 directly enters the first type variable beam-expanding collimation mirror unit 14 by the first light valve steering unit 12.
As shown in Figure 1 and Figure 4, the input that described the second light valve steering unit 13 adopts 45 degree total reflection eyeglasses to switch the second low-power optical fiber laser 20 and the second high-capacity optical fiber laser 21, when adopting 20 pairs of forming metal parts of the second low-power optical fiber laser, 10 silhouette edge sulcus terminalis limit, now 45 degree total reflection eyeglasses are opened, and the second low-power optical fiber laser 20 enters the second type variable beam-expanding collimation mirror unit 15 by the reflection of 45 degree total reflection eyeglasses; When adopting the inner filling of 21 pairs of forming metal parts of the second high-capacity optical fiber laser, 10 profiles, now 45 degree total reflection eyeglasses are removed (as shown in dotted portion), and the second high-capacity optical fiber laser 21 directly enters the second type variable beam-expanding collimation mirror unit 15 by the second light valve steering unit 13.
As depicted in figs. 1 and 2, the processing method of the laser selective melting SLM equipment of the present embodiment, comprises the following steps:
1) sealing moulding chamber 1 is divided into Liang Ge region, HeII district, I district along center line, HeII district, I district is two stations of corresponding movable panel 2 respectively;
2) optical system on movable panel 2 is in I district, and now the first scanning galvanometer unit 16 is over against the first optical lens 25, and described the second scanning galvanometer unit 17 is over against the 3rd optical lens 27;
3) central industrial computer sends a signal to the first low-power optical fiber laser 18, the second low-power optical fiber laser 20, the first light valve steering unit 12, the second light valve steering unit 13, the first type variable beam-expanding collimation mirror unit 14 and the second type variable beam-expanding collimation mirror unit 15;
Open the first low-power optical fiber laser 18, the low power laser bundle of its transmitting enters the first light valve steering unit 12 by optical fiber, the first light valve steering unit 12 adopts 45 degree total reflection eyeglasses that the reflection of low power laser bundle is entered to the first type variable beam-expanding collimation mirror unit 14, the first type variable beam-expanding collimation mirror unit 14 expands multiple according to low power laser Shu Genggai, low power laser bundle after expanding is transferred to the first scanning galvanometer unit 16, after correcting by first group of scanning galvanometer sheet 22 deflection and field lens 24 deflections, by forming metal parts 10 borders in the first optical lens 25Dui I district, carry out the scanning of profile limes marginis,
Open the second low-power optical fiber laser 20, the low power laser bundle of its transmitting enters the second light valve steering unit 13, the second light valve steering units 13 by optical fiber and adopts 45 degree total reflection eyeglasses that the reflection of low power laser bundle is entered to the second type variable beam-expanding collimation mirror unit 15; The second type variable beam-expanding collimation mirror unit 15 expands multiple according to low power laser Shu Genggai, low power laser bundle after expanding is transferred to the second scanning galvanometer unit 17, after correcting by second group of scanning galvanometer sheet 23 deflection and field lens 24 deflections, by forming metal parts 10 borders in the 3rd optical lens 27Dui I district, carry out the scanning of profile limes marginis;
4) after the limes marginis in I district has scanned, by central industrial computer, close the first low-power optical fiber laser 18 and the second low-power optical fiber laser 20, movable panel 2 moves under the drive of screw 3, make the optical system on movable panel 2 enter II district, now the first scanning galvanometer unit 16 is over against the second optical lens 26, described the second scanning galvanometer unit 17 is over against the 4th optical lens 28, continue to open the first low-power optical fiber laser 18 and the second low-power optical fiber laser 20, the scanning of profile limes marginis is carried out on forming metal parts 10 borders in DuiII district;
5) after the limes marginis in II district has scanned, shaped platform 11 is automatic decline one deck under the effect of central industrial computer, now spread powder unit 8 paving layer of metal powder 29, continue to adopt the first low-power optical fiber laser 18 and the second low-power optical fiber laser 20, the scanning of profile limes marginis is carried out on forming metal parts 10 borders in DuiII district, after having scanned, by central industrial computer, close the first low-power optical fiber laser 18 and the second low-power optical fiber laser 20, movable panel 2 moves under the drive of screw 3, make the optical system on movable panel 2 enter I district, return to step 3), until complete 4～10 layers of paving powder limes marginis scanning work, now the optical system on movable panel 2 is in II district, the first scanning galvanometer unit 16 is over against the second optical lens 26, described the second scanning galvanometer unit 17 is over against the 4th optical lens 28:
6) central industrial computer sends a signal to first group of optical fiber laser, second group of optical fiber laser, the first light valve steering unit 12, the second light valve steering unit 13, the first type variable beam-expanding collimation mirror 14 and second type variable beam-expanding collimation mirror 15;
The first low-power optical fiber laser 18 is closed, the first high-capacity optical fiber laser 19 is opened, now 45 of the first light valve steering unit 12 degree completely reflecting mirrors shift out, the high-power laser beam of the first high-capacity optical fiber laser 19 transmittings directly enters the first type variable beam-expanding collimation mirror unit 14 by the first light valve steering unit 12, the first type variable beam-expanding collimation mirror unit 14 expands multiple according to the output facula adjustment of high-power laser beam, high-power laser beam after expanding is transferred to the first scanning galvanometer unit 16, after correcting by first group of scanning galvanometer sheet 22 deflection and field lens 24 deflections, by the forming metal parts 10 in the second optical lens 26Dui II district, carrying out inner filling of profile scans,
The second low-power optical fiber laser 20 is closed, the second high-capacity optical fiber laser 21 is opened, now 45 of the second light valve steering unit 13 degree completely reflecting mirrors shift out, the high-power laser beam of the second high-capacity optical fiber laser 21 transmittings directly enters the second type variable beam-expanding collimation mirror unit 15 by the second light valve steering unit 13, the second type variable beam-expanding collimation mirror unit 15 expands multiple according to the output facula adjustment of high-power laser beam, high-power laser beam after expanding is transferred to the second scanning galvanometer unit 17, after correcting by second group of scanning galvanometer sheet 23 deflection and field lens 24 deflections, by the forming metal parts 10 in the 4th optical lens 28Dui II district, carrying out inner filling of profile scans,
7) after has filled the inside in II district, by central industrial computer, close the first high-capacity optical fiber laser 19 and the second high-capacity optical fiber laser 21, movable panel 2 moves under the drive of screw 3, make the optical system on movable panel 2 enter I district, now the first scanning galvanometer unit 16 is over against the first optical lens 25, described the second scanning galvanometer unit 17 is over against the 3rd optical lens 27, continue to open the first high-capacity optical fiber laser 19 and the second high-capacity optical fiber laser 21, the forming metal parts 10 in I district is carried out to inner filling of profile and scan;
8) adopt 4～10 layers of the first low-power optical fiber laser 18 and 20 pairs of next ones of the second low-power optical fiber laser to complete paving powder limes marginis scanning work, after completing, adopt again the first high-capacity optical fiber laser 19 and the second high-capacity optical fiber laser 21 to carry out inside and fill scanning, the processing of having piled up large scale forming metal parts by layer and layer.
The above; it is only preferred embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in scope disclosed in this invention; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, all being belonged to protection scope of the present invention.
Claims (9)
1. the laser selective melting SLM equipment based on four laser doubles, comprise optical system, central industrial computer and sealing moulding chamber, described optical system is connected with central industrial computer, it is characterized in that: also comprise the movable panel that can realize double location, described sealing moulding chamber and optical system are isolated and be positioned at below movable panel, described optical system comprise two groups of optical fiber lasers and with every group of light valve steering unit that optical fiber laser is corresponding, type variable beam-expanding collimation mirror unit and scanning galvanometer unit, described every group of optical fiber laser comprises two optical fiber lasers, the input of described each light valve steering unit for switching two optical fiber lasers, described two light valve steering units, two type variable beam-expanding collimation mirror units and two scanning galvanometer unit are all arranged on movable panel, the described sealing moulding chamber therein below, double position location of a scanning galvanometer unit is respectively equipped with an optical lens, below the double position location of another scanning galvanometer unit, be also respectively equipped with an optical lens.
2. the laser selective melting SLM equipment based on four laser doubles according to claim 1, it is characterized in that: described two groups of optical fiber lasers are respectively first group of optical fiber laser and second group of optical fiber laser, described first group of optical fiber laser comprises the first low-power optical fiber laser and the first high-capacity optical fiber laser, described second group of optical fiber laser comprises the second low-power optical fiber laser and the second high-capacity optical fiber laser, described the first low-power optical fiber laser and the second low-power optical fiber laser are for forming metal parts boundary scan, described the first high-capacity optical fiber laser and the second high-capacity optical fiber laser scan for inner filling of forming metal parts, described two light valve steering units are respectively the first light valve steering unit and the second light valve steering unit, the input of described the first light valve steering unit for switching the first low-power optical fiber laser and the first high-capacity optical fiber laser, the input of described the second light valve steering unit for switching the second low-power optical fiber laser and the second high-capacity optical fiber laser.
3. the laser selective melting SLM equipment based on four laser doubles according to claim 2, it is characterized in that: described SLM equipment also comprises the first rail plate and the second rail plate being parallel to each other, described movable panel is connected with the second rail plate with the first rail plate respectively, described movable panel extends to the right with the part that the first rail plate is connected, and extends left with the part that the second rail plate is connected, described two type variable beam-expanding collimation mirror units are respectively the first type variable beam-expanding collimation mirror unit and the second type variable beam-expanding collimation mirror unit, described two scanning galvanometer unit are respectively the first scanning galvanometer unit and the second scanning galvanometer unit, described the first light valve steering unit, the first type variable beam-expanding collimation mirror unit are connected successively with the first scanning galvanometer unit, and described the second light valve steering unit, the second type variable beam-expanding collimation mirror unit are connected successively with the second scanning galvanometer unit, described the first type variable beam-expanding collimation mirror unit and the first light valve steering unit are successively set on the part that movable panel extends from left to right to the right, described the second type variable beam-expanding collimation mirror unit and the second light valve steering unit are successively set on the part that movable panel extends from right to left left, described the first scanning galvanometer unit and the second scanning galvanometer unit are symmetricly set on the center of movable panel, described sealing moulding chamber is respectively equipped with the first optical lens and the second optical lens below the double position location of the first scanning galvanometer unit, below the double position location of the second scanning galvanometer unit, be respectively equipped with the 3rd optical lens and the 4th optical lens.
4. the laser selective melting SLM equipment based on four laser doubles according to claim 3, it is characterized in that: described SLM equipment also comprises screw, described screw is connected with central industrial computer by screw gear unit, described screw, under the effect of screw gear unit, drives movable panel to move between double along the first rail plate and the second rail plate by fixed connecting piece.
5. the laser selective melting SLM equipment based on four laser doubles according to claim 3, it is characterized in that: the input that described the first light valve steering unit adopts 45 degree total reflection eyeglasses to switch the first low-power optical fiber laser and the first high-capacity optical fiber laser, the input that described the second light valve steering unit adopts 45 degree total reflection eyeglasses to switch the second low-power optical fiber laser and the second high-capacity optical fiber laser.
6. the laser selective melting SLM equipment based on four laser doubles according to claim 3, it is characterized in that: described the first scanning galvanometer unit is provided with first group of scanning galvanometer sheet for the laser beam of the first type variable beam-expanding collimation mirror unit transmission is carried out to deflection, described the second scanning galvanometer unit is provided with second group of scanning galvanometer sheet for the laser beam of the second type variable beam-expanding collimation mirror unit transmission is carried out to deflection, and described first group of scanning galvanometer sheet and second group of scanning galvanometer sheet are comprised of two mutually orthogonal galvanometer sheets respectively; The bottom of described the first scanning galvanometer unit and the second scanning galvanometer unit is respectively equipped with for laser beam being carried out to the field lens of deflection rectification.
7. the laser selective melting SLM equipment based on four laser doubles according to claim 4, is characterized in that: described screw gear unit adopts servomotor.
8. according to the laser selective melting SLM equipment based on four laser doubles described in claim 1-7 any one, it is characterized in that: described sealing moulding chamber interior is provided with paving powder unit, two bottom sides is respectively equipped with unnecessary Powder Recovery unit, bottom centre place is provided with for placing the shaped platform of forming metal parts, and described shaped platform is by being connected to form the structure that can move down with central industrial computer.
9. the processing method of the laser selective melting SLM equipment based on four laser doubles, is characterized in that comprising the following steps:
1) sealing moulding chamber is divided into Liang Ge region, HeII district, I district along center line, HeII district, I district is two stations of corresponding movable panel respectively;
2) optical system on movable panel is in I district, and now the first scanning galvanometer unit is over against the first optical lens, and described the second scanning galvanometer unit is over against the 3rd optical lens;
3) central industrial computer sends a signal to the first low-power optical fiber laser, the second low-power optical fiber laser, the first light valve steering unit, the second light valve steering unit, the first type variable beam-expanding collimation mirror unit and the second type variable beam-expanding collimation mirror unit;
Open the first low-power optical fiber laser, the low power laser bundle of its transmitting enters the first light valve steering unit by optical fiber, the first light valve steering unit adopts 45 degree total reflection eyeglasses that the reflection of low power laser bundle is entered to the first type variable beam-expanding collimation mirror unit, the first type variable beam-expanding collimation mirror unit expands multiple according to low power laser Shu Genggai, low power laser bundle after expanding is transferred to the first scanning galvanometer unit, after correcting by the deflection of first group of scanning galvanometer sheet and field lens deflection, by the first optical lens, the scanning of profile limes marginis is carried out in the forming metal parts border in I district,
Open the second low-power optical fiber laser, the low power laser bundle of its transmitting enters the second light valve steering unit by optical fiber, and the second light valve steering unit adopts 45 degree total reflection eyeglasses that the reflection of low power laser bundle is entered to the second type variable beam-expanding collimation mirror unit; The second type variable beam-expanding collimation mirror unit expands multiple according to low power laser Shu Genggai, low power laser bundle after expanding is transferred to the second scanning galvanometer unit, after correcting by the deflection of second group of scanning galvanometer sheet and field lens deflection, by the 3rd optical lens, the scanning of profile limes marginis is carried out in the forming metal parts border in I district;
4) after the limes marginis in I district has scanned, by central industrial computer, close the first low-power optical fiber laser and the second low-power optical fiber laser, movable panel moves under the drive of screw, make the optical system on movable panel enter II district, now the first scanning galvanometer unit is over against the second optical lens, described the second scanning galvanometer unit is over against the 4th optical lens, continue to open the first low-power optical fiber laser and the second low-power optical fiber laser, the scanning of profile limes marginis is carried out on the forming metal parts border in DuiII district;
5) after the limes marginis in II district has scanned, shaped platform is automatic decline one deck under the effect of central industrial computer, now spread powder unit paving layer of metal powder, continue to adopt the first low-power optical fiber laser and the second low-power optical fiber laser, the scanning of profile limes marginis is carried out on forming metal parts border in DuiII district, after having scanned, by central industrial computer, close the first low-power optical fiber laser and the second low-power optical fiber laser, movable panel moves under the drive of screw, make the optical system on movable panel enter I district, return to step 3), until complete 4～10 layers of paving powder limes marginis scanning work, now the first scanning galvanometer unit on movable panel and the second scanning galvanometer unit are in II district, the first scanning galvanometer unit is over against the second optical lens, described the second scanning galvanometer unit is over against the 4th optical lens,
6) central industrial computer sends a signal to first group of optical fiber laser, second group of optical fiber laser, the first light valve steering unit, the second light valve steering unit, the first type variable beam-expanding collimation mirror and second type variable beam-expanding collimation mirror;
The first low-power optical fiber laser is closed, the first high-capacity optical fiber laser is opened, now 45 of the first light valve steering unit degree completely reflecting mirrors shift out, the high-power laser beam of the first high-capacity optical fiber laser transmitting directly enters the first type variable beam-expanding collimation mirror unit by the first light valve steering unit, the first type variable beam-expanding collimation mirror unit expands multiple according to the output facula adjustment of high-power laser beam, high-power laser beam after expanding is transferred to the first scanning galvanometer unit, after correcting by the deflection of first group of scanning galvanometer sheet and field lens deflection, by the forming metal parts in the second optical lens DuiII district, carrying out inner filling of profile scans,
The second low-power optical fiber laser is closed, the second high-capacity optical fiber laser is opened, now 45 of the second light valve steering unit degree completely reflecting mirrors shift out, the high-power laser beam of the second high-capacity optical fiber laser transmitting directly enters the second type variable beam-expanding collimation mirror unit by the second light valve steering unit, the second type variable beam-expanding collimation mirror unit expands multiple according to the output facula adjustment of high-power laser beam, high-power laser beam after expanding is transferred to the second scanning galvanometer unit, after correcting by the deflection of second group of scanning galvanometer sheet and field lens deflection, by the forming metal parts in the 4th optical lens DuiII district, carrying out inner filling of profile scans,
7) after has filled the inside in II district, by central industrial computer, close the first high-capacity optical fiber laser and the second high-capacity optical fiber laser, movable panel moves under the drive of screw, make the optical system on movable panel enter I district, now the first scanning galvanometer unit is over against the first optical lens, described the second scanning galvanometer unit is over against the 3rd optical lens, continue to open the first high-capacity optical fiber laser and the second high-capacity optical fiber laser, the forming metal parts in I district is carried out to inner filling of profile and scan;
8) adopt the first low-power optical fiber laser and the second low-power optical fiber laser to complete paving powder limes marginis scanning work to next 4～10 layers, after completing, adopt again the first high-capacity optical fiber laser and the second high-capacity optical fiber laser to carry out inside and fill scanning, the processing of having piled up large scale forming metal parts by layer and layer.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10231136A1 (en) * | 2001-07-31 | 2003-02-13 | 3D Systems Inc | Selective laser sintering with nested replenishment scan |
| CN201300207Y (en) * | 2008-10-30 | 2009-09-02 | 华中科技大学 | Selective laser melting rapid molding device for metal parts |
| CN202291409U (en) * | 2011-07-15 | 2012-07-04 | 华中科技大学 | Selective laser melting rapid molding equipment for directly fabricating large-sized parts |
| WO2013080030A1 (en) * | 2011-11-28 | 2013-06-06 | Chivel Yuri | Method for producing three-dimensional articles from powders and apparatus for carrying out said method |
| CN203635915U (en) * | 2013-12-10 | 2014-06-11 | 华南理工大学 | SLM equipment based on four lasers and double stations |
-
2013
- 2013-12-10 CN CN201310670777.4A patent/CN103658647B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10231136A1 (en) * | 2001-07-31 | 2003-02-13 | 3D Systems Inc | Selective laser sintering with nested replenishment scan |
| CN201300207Y (en) * | 2008-10-30 | 2009-09-02 | 华中科技大学 | Selective laser melting rapid molding device for metal parts |
| CN202291409U (en) * | 2011-07-15 | 2012-07-04 | 华中科技大学 | Selective laser melting rapid molding equipment for directly fabricating large-sized parts |
| WO2013080030A1 (en) * | 2011-11-28 | 2013-06-06 | Chivel Yuri | Method for producing three-dimensional articles from powders and apparatus for carrying out said method |
| CN203635915U (en) * | 2013-12-10 | 2014-06-11 | 华南理工大学 | SLM equipment based on four lasers and double stations |
Cited By (23)
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|---|---|---|---|---|
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| CN104493492B (en) * | 2014-12-12 | 2017-04-19 | 华南理工大学 | Selective laser melting (SLM) and milling compound machining equipment and selective laser melting and milling compound machining method |
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Effective date of registration: 20170522 Address after: 510385, Guangzhou, Guangdong Province, Liwan District, No. 21 South Road, 2, 1 building, C seat Patentee after: Guangzhou Lei Jiazeng material science and Technology Co Ltd Address before: 510640 Tianhe District, Guangdong, No. five road, No. 381, Patentee before: South China University of Technology |